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#Question id: 3296


Some beetles and flies have antler-like structures on their heads, much like male deer. The existence of antlers in beetle, fly, and deer species with strong male-male competition is an example of

#Unit 10. Ecological Principles
  1. convergent evolution

  2. similarity due to shared ancestry

  3. homology

  4. Divergent evolution

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#Question id: 914

#Unit 1. Molecules and their Interaction Relevant to Biology

Lipoprotein lipase acts in:

TLS Online TPP Program

#Question id: 13150

#Unit 8. Inheritance Biology

A fruit fly Drosophila melanogaster showing  three point test cross  st+-e+-ss+  was crossed with triplet recessive mutant st-e-ss. The F1 hybrid  was the backcross with the recessive mutant and the phenotype recorded as follows;

The distance in map unit (mu) between  st+  to  e+ and e+ to ss+ is

TLS Online TPP Program

#Question id: 12611

#Unit 10. Ecological Principles

Researchers in the Netherlands studied the effects of parental caregiving in European kestrels over 5 years. The researchers transferred chicks among nests to produce reduced broods (three or four chicks), normal broods (five or six),  and  enlarged  broods  (seven  or  eight).  They then measured the percentage of male and female parent birds that survived the following winter. (Both males and females provide care for chicks.) Brood Size Manipulations in the Kestrel: Effects on Offspring and Parent Survival

 
Which of the following is a conclusion that can be drawn from this graph?

TLS Online TPP Program

#Question id: 2532

#Unit 2. Cellular Organization

Nonenzymatic proteins whose exact functions are uncertain. Such proteins may be localized in the walls of specific cell types or more widespread;

cell wall protein                                                                                Tissue localization

A) HRGP (hydroxyprolinerich glycoprotein)                                  i) Xylem, fibers, cortex, root hairs

B) AGP (arabinogalactan protein)                                                  ii) Primary xylem and phloem

C) PRP (proline-rich protein)                                                           iii) Cambium, vascular parenchyma

 D) GRP (glycine-rich protein)                                                          iv) Varied cell-specific expression

Which of the following combination of nonenzymatic protein with its correct location?

TLS Online TPP Program

#Question id: 19197

#Unit 12. Applied Biology

What are calorimetric biosensors?